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11. We speak what we know. Some refer this to Christ and John the Baptist; others say that the plural number is used instead of the singular. For my own part, I have no doubt that Christ mentions himself in connection with all the prophets of God, and speaks generally in the person of all. Philosophers and other vain-glorious teachers frequently bring forward trifles which they have themselves invented; but Christ claims it as peculiar to himself and all the servants of God, that they deliver no doctrine but what is certain. For God does not send ministers to prattle about things that are unknown or doubtful, but trains them in his school, that what they have learned from himself they may afterwards deliver to others. Again, as Christ, by this testimony, recommends to us the certainty of his doctrine, so he enjoins on all his ministers a law of modesty, not to put forward their own dreams or conjectures — not to preach human inventions, which have no solidity in theme but to render a faithful and pure testimony to God. Let every man, therefore, see what the Lord has revealed to him, that no man may go beyond the bounds of his faith; and, lastly, that no man may allow himself to speak any thing but what he has heard from the Lord. It ought to be observed, likewise, that Christ here confirms his doctrine by an oath, that it may have full authority over us.

You receive not our testimony. This is added, that the Gospel may lose nothing on account of the ingratitude of men. For since few persons are to be found who exercise faith in the truth of God, and since the truth is everywhere rejected by the world, we ought to defend it against contempt, that its majesty may not be held in less estimation, because the whole world despises it, and obscures it by impiety. Now though the meaning of the words be simple and one, still we must draw from this passage a twofold doctrine. The first is, that our faith in the Gospel may not be weakened, if it have few disciples on the earth; as if Christ had said, Though you do not receive my doctrine, it remains nevertheless certain and durable; for the unbelief of men will never prevent God from remaining always true. The other is, that they who, in the present day, disbelieve the Gospel, will not escape with impunity, since the truth of God is holy and sacred. We ought to be fortified with this shield, that we may persevere in obedience to the Gospel in opposition to the obstinacy of men. True indeed, we must hold by this principle, that our faith be founded on God. But when we have God as our security, we ought, like persons elevated above the heavens, boldly to tread the whole world under our feet, or regard it with lofty disdain, rather than allow the unbelief of any persons whatever to fill us with alarm. As to the complaint which Christ makes, that his testimony is not received, we learn from it, that the word of God has, in all ages, been distinguished by this peculiar feature, that they who believed it were few; for the expression — you receive not — belongs to the greater number, and almost to the whole body of the people. There is no reason, therefore, that we should now be discouraged, if the number of those who believe be small.

12. If I have told you earthly things. Christ concludes that it ought to be laid to the charge of Nicodemus and others, if they do not make progress in the doctrine of the Gospel; for he shows that the blame does not lie with him, that all are not properly instructed, since he comes down even to the earth, that he may raise us to heaven. It is too common a fault that men desire to be taught in an ingenious and witty style. Hence, the greater part of men are so delighted with lofty and abstruse speculations. Hence, too, many hold the Gospel in less estimation, because they do not find in it high-sounding words to fill their ears, and on this account do not deign to bestow their attention on a doctrine so low and mean. But it shows an extraordinary degree of wickedness, that we yield less reverence to God speaking to us, because he condescends to our ignorance; and, therefore, when God prattles to us in Scripture in a rough and popular style, let us know that this is done on account of the love which he bears to us. ⁶⁰⁶⁰     “Pour l’amour de nous.” Whoever exclaims that he is offended by such meanness of language, or pleads it as an excuse for not subjecting himself to the word of God, speaks falsely; for he who cannot endure to embrace God, when he approaches to him, will still less fly to meet him above the clouds.

Earthly things. Some explain this to mean the elements of spiritual doctrine; for self-denial may be said to be the commencement of piety. But I rather agree with those who refer it to the form of instruction; for, though the whole of Christ’s discourse was heavenly, yet he spoke in a manner so familiar, that the style itself had some appearance of being earthly. Besides, these words must not be viewed as referring exclusively to a single sermon; for Christ’s ordinary method of teaching — that is, a popular simplicity of style — is here contrasted with the pompous and high-sounding phrases to which ambitious men are too strongly addicted.

13. No one hath ascended to heaven. He again exhorts Nicodemus not to trust to himself and his own sagacity, because no mortal man can, by his own unaided powers, enter into heaven, but only he who goes thither under the guidance of the Son of God. For to ascend to heaven means here, “to have a pure knowledge of the mysteries of God, and the light of spiritual understanding.” For Christ gives here the same instruction which is given by Paul, when he declares that

the sensual man does not comprehend the things which are of God,
(1 Corinthians 2:14;)

and, therefore, he excludes from divine things all the acuteness of the human understanding, for it is far below God.

But we must attend to the words, that Christ alone, who is heavenly, ascends to heaven, but that the entrance is closed against all others. For, in the former clause, he humbles us, when he excludes the whole world from heaven. Paul enjoins

those who are desirous to be wise with God to be fools with themselves,
(1 Corinthians 3:18.)

There is nothing which we do with greater reluctance. For this purpose we ought to remember, that all our senses fail and give way when we come to God; but, after having shut us out from heaven, Christ quickly proposes a remedy, when he adds, that what was denied to all others is granted to the Son of God. And this too is the reason why he calls himself the Son of man, that we may not doubt that we have an entrance into heaven in common with him who clothed himself with our flesh, that he might make us partakers of all blessings. Since, therefore, he is the Father’s only Counselor, (Isaiah 9:6,) he admits us into those secrets which otherwise would have remained in concealment.

Who is in heaven. It may be thought absurd to say that he is in heaven, while he still dwells on the earth. If it be replied, that this is true in regard to his Divine nature, the mode of expression means something else, namely, that while he was man, he was in heaven. It might be said that no mention is here made of any place, but that Christ is only distinguished from others, in regard to his condition, because he is the heir of the kingdom of God, from which the whole human race is banished; but, as it very frequently happens, on account of the unity of the Person of Christ, that what properly belongs to one nature is applied to another, we ought not to seek any other solution. Christ, therefore, who is in heaven, hath clothed himself with our flesh, that, by stretching out his brotherly hand to us, he may raise us to heaven along with him.